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Title: Solitary Oxygen Dopant Emission from Carbon Nanotubes Modified by Dielectric Metasurfaces

Journal Article · · ACS Nano

All-dielectric metasurfaces made from arrays of high index nanoresonators supporting strong magnetic dipole modes have emerged as a low-loss alternative to plasmonic metasurfaces. Here we use oxygen-doped single-walled carbon nanotubes (SWCNTs) as quantum emitters and couple them to silicon metasurfaces to study effects of the magnetic dipole modes of the constituent nanoresonators on the photoluminescence (PL) of individual SWCNTs. We find that when in resonance, the magnetic mode of the silicon nanoresonators can lead to a moderate average PL enhancement of 0.8–4.0 of the SWCNTs, accompanied by an average increase in the radiative decay rate by a factor of 1.5–3.0. More interestingly, single dopant polarization experiments show an anomalous photoluminescence polarization rotation by coupling individual SWCNTs to silicon nanoresonators. Numerical simulations indicate that this is caused by modification of near-field polarization distribution at certain areas in the proximity of the silicon nanoresonators at the excitation wavelength, thus presenting an approach to control emission polarization. In conclusion, these findings indicate silicon nanoresonators as potential building blocks of quantum photonic circuits capable of manipulating PL intensity and polarization of single photon sources.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-06NA25396; NA0003525
OSTI ID:
1481990
Report Number(s):
LA-UR-18-21087
Journal Information:
ACS Nano, Vol. 11, Issue 6; ISSN 1936-0851
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (5)

Silicon Mie resonators for highly directional light emission from monolayer MoS2 journal April 2018
Spectroscopy and Biosensing with Optically Resonant Dielectric Nanostructures journal January 2018
Engineering novel tunable optical high-Q nanoparticle array filters for a wide range of wavelengths journal January 2020
Dielectric Metasurface-Based High-Efficiency Mid-Infrared Optical Filter journal November 2018
THz filter based on the Si microdisk array journal April 2019